I do get an error for redeeming games from twitch

"ue to high demand, your game might take a little longer to appear in your Owned Games section, but don’t worry — it’ll be there shortly!"

but shortly never happen, after multiple hours, those games don't appear on my library


Games are Mafia 2&3, The Last spell, Legacy of kain,Blood omen, Wild COuntry, God's trigger, Deus Ex invisible war, Mutazione, Talos Principle, Smurf 2, Syberia, gamedec, Dark deity,

Saintrow 3 and Bioshock infinite did work

same here, saintrow 3 and bioshock infinite just work redeem

All I can personally suggest is contacting Support. But others probably have more suggestions.

Those are Amazon Prime codes, not Twitch.
Enter the codes once, they get queued, wait.
That's the only solution.

If yiou reenter them..........you increase your wait.

See this thread: Prime Gaming free games not appearing in GOG library

As stated above, all redeemed key requests are placed in a server queue. It takes time for the server to catch up, thus the message.

Thursdays and Fridays are the worst days to try to redeem. Right after Amazon posts the new free games for the week generates the most redeem key requests and has longest queues. The best days to redeem gift keys are Mondays and Tuesdays, after the usual rush to redeem new keys is over and the server has caught up more. You need to be patient, especially if you rush to redeem a lot of keys right after the new ones are dropped.

Also, the more free game keys Amazon drops for that particular week, the more games redeemed and the longer wait time in the queue lineup. This week Amazon dropped 4 GOG keys, which is more than usual and the increase in redeem requests hit the server queue hard. This weekend is also a holiday and an extended weekend for GOG. Human support staff may not be available until Tuesday. Your best bet is to wait out the weekend and see if your confirmation email arrives. The times for this week currently have been reported to be averaging from 12 to 20 hours before the request goes through.